# API Layer

Configure HTTP and gRPC endpoints.

## Program.cs

```csharp
using OrderManagement.Infrastructure.Data;
using OrderManagement.Infrastructure.Repositories;
using Svrnty.CQRS;
using Svrnty.CQRS.MinimalApi;

var builder = WebApplication.CreateBuilder(args);

// Database
builder.Services.AddDbContext<OrderDbContext>(options =>
    options.UseNpgsql(builder.Configuration.GetConnectionString("Orders")));

// Repositories
builder.Services.AddScoped<IOrderRepository, OrderRepository>();

// CQRS
builder.Services.AddSvrntyCQRS();
builder.Services.AddDefaultCommandDiscovery();
builder.Services.AddDefaultQueryDiscovery();

// Register commands and queries
builder.Services.AddCommand<PlaceOrderCommand, int, PlaceOrderCommandHandler>();
builder.Services.AddQuery<GetOrderQuery, OrderDto, GetOrderQueryHandler>();

// Validators
builder.Services.AddTransient<IValidator<PlaceOrderCommand>, PlaceOrderCommandValidator>();

var app = builder.Build();

// Map endpoints
app.MapSvrntyCommands();
app.MapSvrntyQueries();

app.Run();
```

## Next Steps

Continue to [Testing Strategy](06-testing-strategy.md)